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Allawi S, Ayoubi H, Al‐Tayyan M, Toutangy E, Tolibah YA. Evaluation of roots, root canal morphology, and bilateral symmetry of maxillary first molars in a Syrian subpopulation using cone beam computed tomography. Clin Exp Dent Res 2023; 9:1149-1155. [PMID: 37694669 PMCID: PMC10728511 DOI: 10.1002/cre2.782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/21/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023] Open
Abstract
OBJECTIVE Successful endodontic treatments require a comprehensive knowledge of the root canal anatomy, so this study aimed to investigate the number of roots, configurations of root canals, and their bilateral symmetry of maxillary first molars in the Syrian subpopulation, and also the effect of gender on this symmetry. MATERIALS AND METHODS The study sample consisted of 250 cone beam computed tomography images (140 for females; and 110 for males), including 500 maxillary first molars. Images were investigated by two endodontists. Root number and canal configuration in each root were recorded, according to Vertucci classification, by studying the image at all levels (axial, coronal, sagittal, oplique, and three-dimensional) to assess the bilateral symmetry and its relation to gender. Statistical analysis was performed with SPSS and the χ2 test was used to compare the bilateral symmetry in males and females. RESULT The most common shape of the maxillary first molars was three roots (97.6%). All the roots are symmetrical by 100% in both genders. The root canal configuration was mainly Vertucci type I classification in the distobuccally (73.6%), and palatal root (98%). While the most common types in mesial root were type II (33.3%), this root showed all different types of Vertucci classifications except type VIII, and the proportion of symmetry was (37.2%) without significant difference between the gender (p = .441). CONCLUSION Most maxillary first molars in a Syrian population were three-rooted with four root canals (type II), the numbers of roots achieved perfect symmetry 100%, and higher than symmetry ratios in the number of canals and canals configurations (37.2%).
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Affiliation(s)
- Safaa Allawi
- Department of Endodontics, Faculty of DentistryDamascus UniversityDamascusSyria
| | - Helen Ayoubi
- Department of Endodontics, Faculty of DentistryDamascus UniversityDamascusSyria
| | - Mouhammad Al‐Tayyan
- Department of Endodontics, Faculty of DentistryDamascus UniversityDamascusSyria
| | - Eyad Toutangy
- Department of OrthodonticsSyrian Private UniversityDamascusSyria
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Gascón R, Forner L, Llena C. The Effect of Antioxidants on Dentin Bond Strength after Application of Common Endodontic Irrigants: A Systematic Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2260. [PMID: 36984145 PMCID: PMC10057387 DOI: 10.3390/ma16062260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
The purpose of this systematic review was to evaluate how an antioxidant treatment would influence the immediate bond strength of dental adhesives to endodontically treated dentine. Scientific evidence was researched in five databases using selected descriptors. Two independent reviewers conducted the investigation and assessed the data and methodological quality of the studies. Inclusion and exclusion criteria were specified for article selection; only studies in English and published between 2001 and 2022 were evaluated. A total of 18 studies were selected and analysed. According to most studies, the irrigation procedure and substrate preparation in endodontic therapy may affect the immediate bond strength. Antioxidants can improve bond strength and adhesion following the use of the most frequently used irrigants in root canal treatments. Therefore, antioxidant treatment can be considered a proper technique to enhance the bond strength of endodontically treated teeth.
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Jurema ALB, Correia AMDO, Spinola MDS, Bresciani E, Caneppele TMF. Influence of different intraradicular chemical pretreatments on the bond strength of adhesive interface between dentine and fiber post cements: A systematic review and network meta-analysis. Eur J Oral Sci 2022; 130:e12881. [PMID: 35673777 DOI: 10.1111/eos.12881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 05/11/2022] [Indexed: 11/26/2022]
Abstract
Systematic review and network meta-analyses were performed to answer the question: Do intraradicular chemical pretreatments affect the bond strength of the adhesive interface between dentine and fiber post cements? A literature search was performed in PubMed, Scopus, Web of Science, LILACS, BBO, and Cochrane Library in October 2018 (updated September 2021). In vitro studies that compared the bond strength assessed by push-out tests following at least two dentine chemical treatments prior to fiber post cementation were included. Risk of bias was evaluated. A random-effects Bayesian-mixed treatment comparison model was used to compare push-out bond strength of different chemical pretreatments. SUCRA (surface area under the cumulative ranking) analysis was performed to rank the pretreatments. After removing duplicates and screening titles and abstracts, 61 studies remained. SUCRA analysis showed that the best bond strength values for self-etch, etch-and-rinse, and self-adhesive cements were ethyl acetate (SUCRA: 99.8%), low concentration NaOCl (SUCRA: 83.4%), and grape seed extract (SUCRA: 97.6%), respectively. According to the SUCRA rankings, ethanol was in a good position for all adhesive strategies (SUCRA: 78.6%). The use of chemical pretreatments in intraradicular dentine of endodontically treated teeth depends on the adhesive and cementation strategy. The pretreatment generally associated with the highest bond strength was ethanol.
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Affiliation(s)
- Ana Luiza Barbosa Jurema
- Department of Restorative Dentistry, São Paulo State University- UNESP, Institute of Science and Technology, São Paulo, Brazil
| | | | - Manuela da Silva Spinola
- Department of Restorative Dentistry, São Paulo State University- UNESP, Institute of Science and Technology, São Paulo, Brazil
| | - Eduardo Bresciani
- Department of Restorative Dentistry, São Paulo State University- UNESP, Institute of Science and Technology, São Paulo, Brazil
| | - Taciana Marco Ferraz Caneppele
- Department of Restorative Dentistry, São Paulo State University- UNESP, Institute of Science and Technology, São Paulo, Brazil
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Bohrer TC, Fontana PE, Rocha RO, Kaizer OB. Post-Space Treatment Influences the Bond Strength In Endodontically Treated Teeth: A Systematic Review and Meta-Analysis of In Vitro Studies. Oper Dent 2021; 46:E132-E157. [PMID: 34370019 DOI: 10.2341/19-277-lit] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVES This systematic review of in vitro studies investigated the influence of the post-space treatment used to remove the smear layer on the bond strength of the post to root canal dentin. METHODS AND MATERIALS In vitro studies included in this study were identified from PubMed/MEDLINE, Lilacs, and Scopus databases up until March 2019, without limits on publication year or language. Two reviewers independently selected the studies based on the inclusion and exclusion criteria, extracted the data, and evaluated the risk of bias of all studies. A random effects model was used for pairwise meta-analyses (control vs. post-space preparation groups) at a significance level of p<0.05. RESULTS Of the 2,832 potentially eligible studies, 453 studies were selected for full-text analysis, and 75 were included in this systematic review. Only one study was considered to have a low risk of bias. Overall, post-space treatment significantly improves the bond strength to root canal dentin (p<0.00001). CONCLUSION Post-space treatment has a positive influence on the bond strength of the post to root canal dentin. In this review, the post-space treatments that improve the adhesive resistance of the post were ethanol, sodium hypochlorite, and ethylene diamine tetra-acetic acid (NaOCl + EDTA), NaOCl + EDTA + ultrasound, erbium-doped yttrium aluminium garnet laser (Er:YAG laser), neodymium-doped yttrium aluminium garnet laser (Nd:YAG laser), and diode laser.
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Bandeca MC, Kuga MC, Diniz AC, Jordão-Basso KC, Tonetto MR. Effects of the Residues from the Endodontic Sealers on the Longevity of Esthetic Restorations. J Contemp Dent Pract 2016; 17:615-617. [PMID: 27659075 DOI: 10.5005/jp-journals-10024-1899] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The substances used in the root canal treatment, especially sodium hypochlorite solution and oxidant agents, can negatively interfere on the bond strength of the adhesive systems to dentin and on the dental crowns fracture resistance.(1,2).
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Affiliation(s)
- Matheus C Bandeca
- Professor, Department of Postgraduate Program in Dentistry, CEUMA University, São Luis, Maranhão, Brazil, e-mail:
| | - Milton C Kuga
- Professor, Department of Restorative Dentistry, School of Dentistry, Univ Estadual Paulista, Araraquara, São Paulo, Brazil
| | - Ana Cs Diniz
- Student, Department of Postgraduate Program in Dentistry, CEUMA University, São Luis, Maranhão, Brazil
| | - Keren Cf Jordão-Basso
- Student, Department of Postgraduate Program in Integrated Dental Science, University of Cuiabá, Mato Grosso, Brazil
| | - Mateus R Tonetto
- Professor, Department of Postgraduate Program in Integrated Dental Science, University of Cuiabá, Mato Grosso, Brazil
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Pelegrine RA, Paulillo LAMS, Kato AS, Fontana CE, Pinheiro SL, De Martin AS, Bueno CEDS. Effect of Endodontic Retreatment on Push-out Bond Strength and Quality of Fiber Postbonding Interface of Resin Cements. J Contemp Dent Pract 2016; 17:42-8. [PMID: 27084862 DOI: 10.5005/jp-journals-10024-1801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIM The aim of this study is to evaluate the impact of endodontic retreatment on push-out bond strength and dentin interface of two resin cements used for fiber postcementation during endodontic retreatment. MATERIALS AND METHODS The root canals of 40 extracted human canines were prepared, obturated and divided into four groups (n = 10). Gutta-percha was partially removed and fiber posts were immediately cemented in groups 1 and 2 using Panavia F with ED Primer and RelyX™ U200, respectively. In groups 3 and 4, the root canal access was sealed with temporary restorative cement, specimens were stored for 30 days, endodontically retreated, and fiber posts were cemented using the resin cements applied to groups 1 and 2, respectively. Push-out tests and scanning electron microscopy analyses of different areas were performed. Data from push-out bond strengths were analyzed by one-way analysis of variance and Tukey's tests. RESULTS Higher bond strength values were detected in the apical third for group 1 than group 3 (p < 0.05). No differences were observed in other comparisons between the same third of different groups (p > 0.05). Comparisons between different thirds in the same group revealed a higher bond strength in the apical third for group 1. Scanning electron microscopy showed formation of hybrid layer and extensive resin tags in group 1. No hybrid layer was observed in groups 2 and 4. CONCLUSION Endodontic retreatment had adverse effects on the push-out bond strength and dentinal interface of Panavia F with ED Primer when used for fiber postcementation specifically in the apical third, but not on RelyX™ U200. CLINICAL SIGNIFICANCE A significant interaction was detected between endodontic retreatment and resin cement, which indicated that endodontic retreatment might adversely affect the push-out bond strength and dentinal interface of Panavia F with ED Primer when used for fiber postcementation specifically in the apical third.
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Affiliation(s)
- Rina Andréa Pelegrine
- Professor, Department of Endodontics, São Leopoldo Mandic Institute and Research Center, São Paulo, Brazil, Phone: +551932725219 e-mail:
| | | | - Augusto Shoji Kato
- Department of Endodontics, São Leopoldo Mandic Institute and Research Center, São Paulo, Brazil
| | - Carlos Eduardo Fontana
- Department of Endodontics, São Leopoldo Mandic Institute and Research Center, São Paulo, Brazil
| | - Sérgio Luiz Pinheiro
- Department of Restorative Dentistry, Catholic University of Campinas, Campinas, São Paulo, Brazil
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Haragushiku GA, Back EDEE, Tomazinho PH, Baratto Filho F, Furuse AY. Influence of antimicrobial solutions in the decontamination and adhesion of glass-fiber posts to root canals. J Appl Oral Sci 2015; 23:436-41. [PMID: 26398518 PMCID: PMC4560506 DOI: 10.1590/1678-775720150005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Objective This study evaluated the effect of root canal disinfectants on the elimination of bacteria from the root canals, as well as their effect on glass-fiber posts bond strength. Material and Methods Fifty-three endodontically treated root canals had post spaces of 11 mm in length prepared and contaminated with E. faecalis. For CFU/ml analysis, eight teeth were contaminated for 1 h or 30 days (n=4). Teeth were decontaminated with 5% NaOCl, 2% CHX, or distilled water. As control, no decontamination was conducted. After decontamination, sterile paper points were used to collect samples, and CFU/ml were counted. For push-out, three groups were evaluated (n=15): irrigation with 2.5% NaOCl, 2% CHX, or sterile distilled water. A bonding agent was applied to root canal dentin, and a glass-fiber post was cemented with a dual-cured cement. After 24 h, 1-mm-thick slices of the middle portion of root canals were obtained and submitted to the push-out evaluation. Three specimens of each group were evaluated in scanning electron microscopy (SEM). Data were analyzed with one-way ANOVA and Dunnett’s T3 test (α=0.05). Results The number of CFU/ml increased from 1 h to 30 days of contamination in control and sterile distilled water groups. Decontamination with NaOCl was effective only when teeth were contaminated for 1 h. CHX was effective at both contamination times. NaOCl did not influence the bond strength (p>0.05). Higher values were observed with CHX (p<0.05). SEM showed formation of resin tags in all groups. Conclusion CHX showed better results for the irrigation of contaminated root canals both in reducing the bacterial contamination and in improving the glass-fiber post bonding.
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Affiliation(s)
| | | | | | | | - Adilson Yoshio Furuse
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, BR
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